*{
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}
.container{
	width: 870px;
	margin: auto;
}
.container::after{
	content:"" ;
	display: table;
	clear: both;
}
header{
	background: #61bae6;
}
nav{
	padding-top:11px ;
	padding-bottom: 11px;
}
nav .nav-left,
nav .nav-center,
nav .nav-right{
	float: left;
	width: 33.333333%;
}
nav .nav-left{
	height: 56px;
}
nav .container{
	text-align: center;
}
nav .nav-right{
	text-align: right;
}
nav .nav-right a{
	color: #fff;
	font-size: 12px;
	font-weight:bold ;
	text-decoration: none;
}
nav .nav-right a img{
	display: none;
}
.banner .col{
	width: 50%;
	float: left;
}
.banner{
	color: #fff;
}
.banner p{
	font-weight: bold;
}
.banner h1{
	font-weight: 300;
	margin-bottom:25px ;
	font-size: 36px;
}
.banner a{
	background-color:#2996cc ;
	padding: 15px 53px;
	font-weight:bold;
	text-decoration: none;
	color: #fff;
	font-size: 12px;
	display: inline-block;
	border-radius: 2px;
	transition: .5s
}
.banner a:hover{
	background-color:#1882b7 ;
}
.banner .img{
	
	width:100%;
}
main{
	margin-top: 30px;
}
main .col{
	width: 25%;
	float: left;
	text-align: center;
	padding-left:10px ;
	padding-right: 10px;
}
main img{
	font-size: 14px;
	margin-bottom: 10px;
}
main p{
	font-size: 14px;
	color: #657082;
}
